According to stoner lore, 4:20 was the time of day, in the Seventies, that a small group of smokers at San Rafael High School in California would meet to get high. The number has come down to us as "the universal time to get high" and/or a nice shorthand for marijuana. For our purposes, it's a flimsy but serviceable pretext to spend this week – anchored as it is by Wednesday, 4/20 – digging into the politics of pot in America, as well as its place in popular culture. Check back here for regular updates throughout the week

The 15 Greatest Stoner SongsThe artists included on our list are a diverse lot, but most every song has two things in common: a mellow vibe and a deep, passionate love for marijuana – and ganja, pot, cannabis, grass, weed, kaya . . .